Our favorite bedding basics in dorm-friendly, extra-long sizes. Upgrade a dorm room bed with this Tencel mattress pad that naturally inhibits mold and dust mites. Topped with a quilted 300-thread-count cover, the pad adds a layer of cozy comfort to a new home away from home. The elastic finish keeps the extra-long pad securely in place on twin mattresses up to 17 inches in depth.